Calhoun County, FL Shrink-Swell Risk

Calhoun County, FL's soil, for shrink-swell risk

Low

Calhoun County, FL: USDA's soil survey rates 89% of the county "Low" for shrink-swell potential (1.37% linear extensibility). That's the easiest starting point on this site's scale - a standard foundation is the reasonable default here, though any one lot can still differ.

What Calhoun County's reading doesn't cover

Two lots a mile apart in Calhoun County can carry different soil, even though they share one countywide reading. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

What it costs to find out, versus to ignore it

With Calhoun County, FL rating "Low", a geotechnical report is still worthwhile before a build, just less urgent than in a high-risk county. A geotechnical report runs $1,000-$5,000, typically around $2,700. Foundation repair, if a specific lot turns out to differ from the county average, runs $5,000-$15,000.

Calhoun County's rank among Florida counties

Nationally, Calhoun County, FL is the 2,645-most-constrained of 3,085 rated counties for shrink-swell soil. Within Florida alone it ranks 13 of 66. Calhoun County covers 567 square miles and counts 13,278 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Whitley County, KY and Jackson County, AR are worth a look for comparison.

How this reading is built, and its real limits · Moisture management: the cheap fix that works on any soil

More of Florida

Every county in Florida is on this site, including Broward County, FL and Lafayette County, FL. The full underlying dataset is downloadable directly, one row per county.